Keyport is a town located in the New Jersey region of the United States. During the most recent census, Keyport had a population of 7,240. Keyport is the 243rd most poplulated city in the New Jersey region, the 5,007th most populated city in the United States and the 25,003rd most populated city in the world. Keyport is in the America/New York timezone which is 4 hours behind UTC. Keyport adjusts the hour with daylight savings time during the winter months.